The Walker Products Mass Air Flow Sensor (part number 245-2173) is a direct-fit replacement for 1999-2010 Audi, BMW, Land Rover, and Mercedes-Benz vehicles with 1.8L, 4.4L, and 4.6L engines. Walker Premium Mass Air Flow Sensors are 100% OEM quality. Walker Mass Air Flow Sensors are precision made for outstanding performance and manufactured to meet or exceed all original equipment specifications and test requirements.
Features:
- Engineered for OE Performance: These sensors are meticulously engineered and rigorously tested to meet and exceed OE performance and durability standards, guaranteeing consistent and accurate air flow readings.
- Improved Engine Efficiency: Accurate air flow data helps the ECU optimize the air-fuel mix, enhancing fuel efficiency and performance while ensuring reliable monitoring.
- Effortless Installation: Designed for easy and straightforward installation, these sensors minimize vehicle downtime during replacement, keeping your vehicle on the road.
- Durable Build: Crafted with high-quality materials, these sensors are built to withstand demanding conditions, ensuring long-lasting reliability and reducing the need for frequent replacements.
Specifications:
| Number of Terminals | 5 |
| Terminal Gender | Female |
Fits: 1999-2010 Audi, BMW, Land Rover, and Mercedes-Benz models including A3, 540i, 740i, 740iL, X5, Z8, Range Rover, G55 AMG and more — 1.8L, 4.4L, and 4.6L engines.
Confirm the year, make, model, and engine against your vehicle before ordering. Full application data is shown in the fitment lookup on this page.
Interchanges With: Blue Streak MF21157N
WARNING: This product can expose you to chemicals, including lead, which is known to the State of California to cause cancer or birth defects or other reproductive harm.
